Percents are used to calculate tax, tips, and even test grades. This
chapter will teach the meaning of a percent, and how to convert between
fractions, decimals, and percents. It will also explain how to calculate
percents; that is, how to find the percent of a number.
This chapter is broken down into two sections. The first
section will explain what the term
"percent" means. It will also explain how to convert
percents to decimals, and vice versa, as well as how to convert percents to
fractions, and vice versa. These are the same conversions teachers use to
figure out their students' test scores.
The second section will focus on how to
find the percent of a number. In addition to its usefulness in mathematics,
many other fields require this skill--economics, chemistry, statistics, and
psychology, to name a few. This skill is also useful in everyday life; one is
often asked to calculate a tip or to figure out how much tax will be added to an
item.